Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39897430" target="_blank" >RIV/00216275:25310/13:39897430 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode
Original language description
This study investigates an easy approach for the amperometric determination of sulfide using a quercetin modified carbon paste electrode (QH2/CPE). The results from experiments show that QH2/CPE significantly enhances the electrocatalytic activity towards sulfide oxidation. Cyclic voltammetric studies show that the peak potential of sulphide shifted from +375 mV at unmodified CPE to +175 mV at QH2/CPE at optimal condition. The currents obtained from amperometric measurements were linearly correlated with the concentration of sulfide. Calibration curve was obtained for sulfide concentrations in the range of 0.1 - 100 ?M. The detection limit was found to be 0.03 ?M for the amperometric method. The proposed method was successfully applied to Labe River water sample in Pardubice, Czech Republic. Finally, results from sulfide measurements by QH2/CPE were in good agreement with those obtained from the spectrophotometric method.
Czech name
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Czech description
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Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Monitorování cizorodých látek v životním prostředí XV., sborník příspěvků ze semináře
ISBN
978-80-7395-683-7
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
29-36
Publisher name
Univerzita Pardubice
Place of publication
Pardubice
Event location
Ovčárna pod Pradědem
Event date
Apr 10, 2013
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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